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1126 | serge | 1 | /* |
2 | * Copyright © 2007 David Airlie |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the "Software"), |
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6 | * to deal in the Software without restriction, including without limitation |
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7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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8 | * and/or sell copies of the Software, and to permit persons to whom the |
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9 | * Software is furnished to do so, subject to the following conditions: |
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10 | * |
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11 | * The above copyright notice and this permission notice (including the next |
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12 | * paragraph) shall be included in all copies or substantial portions of the |
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13 | * Software. |
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14 | * |
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15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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21 | * DEALINGS IN THE SOFTWARE. |
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22 | * |
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23 | * Authors: |
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24 | * David Airlie |
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25 | */ |
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1179 | serge | 26 | #include |
1986 | serge | 27 | #include |
1179 | serge | 28 | #include |
1126 | serge | 29 | |
2997 | Serge | 30 | #include |
31 | #include |
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32 | #include |
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33 | #include |
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1126 | serge | 34 | #include "radeon.h" |
35 | |||
2997 | Serge | 36 | #include |
1179 | serge | 37 | |
5078 | serge | 38 | struct drm_framebuffer *main_fb; |
39 | struct drm_gem_object *main_fb_obj; |
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1126 | serge | 40 | |
1963 | serge | 41 | /* object hierarchy - |
42 | this contains a helper + a radeon fb |
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43 | the helper contains a pointer to radeon framebuffer baseclass. |
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44 | */ |
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45 | struct radeon_fbdev { |
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1179 | serge | 46 | struct drm_fb_helper helper; |
1963 | serge | 47 | struct radeon_framebuffer rfb; |
48 | struct list_head fbdev_list; |
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1126 | serge | 49 | struct radeon_device *rdev; |
50 | }; |
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51 | |||
52 | static struct fb_ops radeonfb_ops = { |
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2997 | Serge | 53 | .owner = THIS_MODULE, |
1179 | serge | 54 | .fb_check_var = drm_fb_helper_check_var, |
55 | .fb_set_par = drm_fb_helper_set_par, |
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56 | // .fb_fillrect = cfb_fillrect, |
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57 | // .fb_copyarea = cfb_copyarea, |
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58 | // .fb_imageblit = cfb_imageblit, |
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59 | // .fb_pan_display = drm_fb_helper_pan_display, |
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60 | .fb_blank = drm_fb_helper_blank, |
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1221 | serge | 61 | .fb_setcmap = drm_fb_helper_setcmap, |
1126 | serge | 62 | }; |
63 | |||
64 | |||
1233 | serge | 65 | int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled) |
1126 | serge | 66 | { |
67 | int aligned = width; |
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1179 | serge | 68 | int align_large = (ASIC_IS_AVIVO(rdev)) || tiled; |
1126 | serge | 69 | int pitch_mask = 0; |
70 | |||
71 | switch (bpp / 8) { |
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72 | case 1: |
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73 | pitch_mask = align_large ? 255 : 127; |
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74 | break; |
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75 | case 2: |
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76 | pitch_mask = align_large ? 127 : 31; |
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77 | break; |
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78 | case 3: |
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79 | case 4: |
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80 | pitch_mask = align_large ? 63 : 15; |
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81 | break; |
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82 | } |
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83 | |||
84 | aligned += pitch_mask; |
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85 | aligned &= ~pitch_mask; |
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86 | return aligned; |
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87 | } |
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88 | |||
5078 | serge | 89 | static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj) |
90 | { |
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91 | struct radeon_bo *rbo = gem_to_radeon_bo(gobj); |
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92 | int ret; |
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1179 | serge | 93 | |
5078 | serge | 94 | ret = radeon_bo_reserve(rbo, false); |
95 | if (likely(ret == 0)) { |
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96 | radeon_bo_kunmap(rbo); |
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97 | radeon_bo_unpin(rbo); |
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98 | radeon_bo_unreserve(rbo); |
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99 | } |
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100 | drm_gem_object_unreference_unlocked(gobj); |
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101 | } |
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102 | |||
103 | static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev, |
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104 | struct drm_mode_fb_cmd2 *mode_cmd, |
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105 | struct drm_gem_object **gobj_p) |
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106 | { |
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107 | struct radeon_device *rdev = rfbdev->rdev; |
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108 | struct drm_gem_object *gobj = NULL; |
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109 | struct radeon_bo *rbo = NULL; |
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110 | bool fb_tiled = false; /* useful for testing */ |
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111 | u32 tiling_flags = 0; |
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112 | int ret; |
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113 | int aligned_size, size; |
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114 | int height = mode_cmd->height; |
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115 | u32 bpp, depth; |
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116 | |||
117 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp); |
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118 | |||
119 | /* need to align pitch with crtc limits */ |
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120 | mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, bpp, |
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121 | fb_tiled) * ((bpp + 1) / 8); |
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122 | |||
123 | if (rdev->family >= CHIP_R600) |
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124 | height = ALIGN(mode_cmd->height, 8); |
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125 | size = mode_cmd->pitches[0] * height; |
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126 | aligned_size = ALIGN(size, PAGE_SIZE); |
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127 | |||
128 | rbo = rdev->stollen_vga_memory; |
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129 | gobj = &rbo->gem_base; |
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130 | mutex_lock(&rdev->gem.mutex); |
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131 | list_add_tail(&rbo->list, &rdev->gem.objects); |
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132 | mutex_unlock(&rdev->gem.mutex); |
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133 | |||
134 | rbo = gem_to_radeon_bo(gobj); |
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135 | |||
136 | if (fb_tiled) |
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137 | tiling_flags = RADEON_TILING_MACRO; |
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138 | |||
139 | #ifdef __BIG_ENDIAN |
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140 | switch (bpp) { |
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141 | case 32: |
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142 | tiling_flags |= RADEON_TILING_SWAP_32BIT; |
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143 | break; |
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144 | case 16: |
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145 | tiling_flags |= RADEON_TILING_SWAP_16BIT; |
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146 | default: |
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147 | break; |
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148 | } |
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149 | #endif |
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150 | |||
151 | // if (tiling_flags) { |
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152 | // ret = radeon_bo_set_tiling_flags(rbo, |
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153 | // tiling_flags | RADEON_TILING_SURFACE, |
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154 | // mode_cmd->pitches[0]); |
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155 | // if (ret) |
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156 | // dev_err(rdev->dev, "FB failed to set tiling flags\n"); |
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157 | // } |
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158 | |||
159 | |||
160 | ret = radeon_bo_reserve(rbo, false); |
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161 | if (unlikely(ret != 0)) |
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162 | goto out_unref; |
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163 | /* Only 27 bit offset for legacy CRTC */ |
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164 | ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, |
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165 | ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, |
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166 | NULL); |
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167 | if (ret) { |
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168 | radeon_bo_unreserve(rbo); |
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169 | goto out_unref; |
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170 | } |
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171 | radeon_bo_unreserve(rbo); |
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172 | if (ret) { |
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173 | goto out_unref; |
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174 | } |
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175 | |||
176 | *gobj_p = gobj; |
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177 | return 0; |
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178 | out_unref: |
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179 | radeonfb_destroy_pinned_object(gobj); |
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180 | *gobj_p = NULL; |
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181 | return ret; |
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182 | } |
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183 | |||
184 | static int radeonfb_create(struct drm_fb_helper *helper, |
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1963 | serge | 185 | struct drm_fb_helper_surface_size *sizes) |
186 | { |
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5271 | serge | 187 | struct radeon_fbdev *rfbdev = |
188 | container_of(helper, struct radeon_fbdev, helper); |
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1963 | serge | 189 | struct radeon_device *rdev = rfbdev->rdev; |
190 | struct fb_info *info; |
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191 | struct drm_framebuffer *fb = NULL; |
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2997 | Serge | 192 | struct drm_mode_fb_cmd2 mode_cmd; |
1963 | serge | 193 | struct drm_gem_object *gobj = NULL; |
194 | struct radeon_bo *rbo = NULL; |
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195 | struct device *device = &rdev->pdev->dev; |
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196 | int ret; |
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197 | unsigned long tmp; |
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1126 | serge | 198 | |
1963 | serge | 199 | mode_cmd.width = sizes->surface_width; |
200 | mode_cmd.height = sizes->surface_height; |
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201 | |||
202 | /* avivo can't scanout real 24bpp */ |
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203 | if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev)) |
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204 | sizes->surface_bpp = 32; |
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205 | |||
2997 | Serge | 206 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
207 | sizes->surface_depth); |
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1963 | serge | 208 | |
2997 | Serge | 209 | ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj); |
210 | if (ret) { |
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211 | DRM_ERROR("failed to create fbcon object %d\n", ret); |
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212 | return ret; |
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213 | } |
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214 | |||
1986 | serge | 215 | rbo = gem_to_radeon_bo(gobj); |
1963 | serge | 216 | |
217 | /* okay we have an object now allocate the framebuffer */ |
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218 | info = framebuffer_alloc(0, device); |
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1126 | serge | 219 | if (info == NULL) { |
220 | ret = -ENOMEM; |
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221 | goto out_unref; |
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222 | } |
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1179 | serge | 223 | |
1963 | serge | 224 | info->par = rfbdev; |
1126 | serge | 225 | |
2997 | Serge | 226 | ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj); |
227 | if (ret) { |
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5078 | serge | 228 | DRM_ERROR("failed to initialize framebuffer %d\n", ret); |
2997 | Serge | 229 | goto out_unref; |
230 | } |
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1963 | serge | 231 | |
232 | fb = &rfbdev->rfb.base; |
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233 | |||
234 | /* setup helper */ |
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235 | rfbdev->helper.fb = fb; |
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236 | rfbdev->helper.fbdev = info; |
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237 | |||
238 | // memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo)); |
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239 | |||
1179 | serge | 240 | strcpy(info->fix.id, "radeondrmfb"); |
1126 | serge | 241 | |
2997 | Serge | 242 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
1179 | serge | 243 | |
1963 | serge | 244 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
1179 | serge | 245 | info->fbops = &radeonfb_ops; |
246 | |||
1963 | serge | 247 | tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start; |
1126 | serge | 248 | info->fix.smem_start = rdev->mc.aper_base + tmp; |
1963 | serge | 249 | info->fix.smem_len = radeon_bo_size(rbo); |
250 | info->screen_base = rbo->kptr; |
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251 | info->screen_size = radeon_bo_size(rbo); |
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1179 | serge | 252 | |
1963 | serge | 253 | drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height); |
1179 | serge | 254 | |
255 | /* setup aperture base/size for vesafb takeover */ |
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1963 | serge | 256 | info->apertures = alloc_apertures(1); |
257 | if (!info->apertures) { |
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258 | ret = -ENOMEM; |
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259 | goto out_unref; |
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260 | } |
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261 | info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base; |
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262 | info->apertures->ranges[0].size = rdev->mc.aper_size; |
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1179 | serge | 263 | |
2997 | Serge | 264 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
1963 | serge | 265 | |
5078 | serge | 266 | |
1126 | serge | 267 | DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); |
268 | DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); |
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1963 | serge | 269 | DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo)); |
1126 | serge | 270 | DRM_INFO("fb depth is %d\n", fb->depth); |
2997 | Serge | 271 | DRM_INFO(" pitch is %d\n", fb->pitches[0]); |
1126 | serge | 272 | |
5078 | serge | 273 | main_fb = fb; |
274 | main_fb_obj = gobj; |
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1986 | serge | 275 | |
1963 | serge | 276 | return 0; |
1126 | serge | 277 | |
278 | out_unref: |
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1404 | serge | 279 | if (rbo) { |
1963 | serge | 280 | |
1126 | serge | 281 | } |
282 | if (fb && ret) { |
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283 | kfree(fb); |
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284 | } |
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285 | return ret; |
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286 | } |
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287 | |||
1963 | serge | 288 | |
289 | static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev) |
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290 | { |
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291 | struct fb_info *info; |
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292 | struct radeon_framebuffer *rfb = &rfbdev->rfb; |
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293 | |||
294 | if (rfbdev->helper.fbdev) { |
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295 | info = rfbdev->helper.fbdev; |
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296 | |||
297 | // unregister_framebuffer(info); |
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298 | // framebuffer_release(info); |
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299 | } |
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300 | |||
301 | if (rfb->obj) { |
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302 | rfb->obj = NULL; |
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303 | } |
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304 | // drm_fb_helper_fini(&rfbdev->helper); |
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305 | drm_framebuffer_cleanup(&rfb->base); |
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306 | |||
307 | return 0; |
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308 | } |
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309 | |||
5078 | serge | 310 | static const struct drm_fb_helper_funcs radeon_fb_helper_funcs = { |
1963 | serge | 311 | .gamma_set = radeon_crtc_fb_gamma_set, |
312 | .gamma_get = radeon_crtc_fb_gamma_get, |
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5078 | serge | 313 | .fb_probe = radeonfb_create, |
1963 | serge | 314 | }; |
315 | |||
316 | int radeon_fbdev_init(struct radeon_device *rdev) |
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317 | { |
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318 | struct radeon_fbdev *rfbdev; |
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1404 | serge | 319 | int bpp_sel = 32; |
1963 | serge | 320 | int ret; |
5078 | serge | 321 | ENTER(); |
1404 | serge | 322 | |
323 | /* select 8 bpp console on RN50 or 16MB cards */ |
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324 | if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024)) |
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325 | bpp_sel = 8; |
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326 | |||
1963 | serge | 327 | rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL); |
328 | if (!rfbdev) |
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329 | return -ENOMEM; |
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1126 | serge | 330 | |
1963 | serge | 331 | rfbdev->rdev = rdev; |
332 | rdev->mode_info.rfbdev = rfbdev; |
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1126 | serge | 333 | |
5078 | serge | 334 | drm_fb_helper_prepare(rdev->ddev, &rfbdev->helper, |
335 | &radeon_fb_helper_funcs); |
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336 | |||
1963 | serge | 337 | ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper, |
338 | rdev->num_crtc, |
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339 | RADEONFB_CONN_LIMIT); |
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340 | if (ret) { |
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341 | kfree(rfbdev); |
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342 | return ret; |
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1126 | serge | 343 | } |
344 | |||
1963 | serge | 345 | drm_fb_helper_single_add_all_connectors(&rfbdev->helper); |
1179 | serge | 346 | |
5078 | serge | 347 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
348 | drm_helper_disable_unused_functions(rdev->ddev); |
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1986 | serge | 349 | |
5078 | serge | 350 | drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel); |
351 | LEAVE(); |
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1963 | serge | 352 | |
1126 | serge | 353 | return 0; |
354 | } |
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1963 | serge | 355 | |
356 | void radeon_fbdev_fini(struct radeon_device *rdev) |
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357 | { |
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358 | if (!rdev->mode_info.rfbdev) |
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359 | return; |
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360 | |||
361 | radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev); |
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362 | kfree(rdev->mode_info.rfbdev); |
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363 | rdev->mode_info.rfbdev = NULL; |
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364 | } |
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365 | |||
366 | |||
367 | int radeon_fbdev_total_size(struct radeon_device *rdev) |
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368 | { |
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369 | struct radeon_bo *robj; |
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370 | int size = 0; |
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371 | |||
1986 | serge | 372 | robj = gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj); |
1963 | serge | 373 | size += radeon_bo_size(robj); |
374 | return size; |
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375 | } |
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376 | |||
377 | bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj) |
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378 | { |
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1986 | serge | 379 | if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj)) |
1963 | serge | 380 | return true; |
381 | return false; |
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382 | }=>><> |